Prefer the Nijmeegse Heuvelrug. Much closer to home. Although i did camp there during that brutally cold night of March 4, 2005. That was more for meteorological reasons though; managed to get two degrees colder than the officially coldest temperature in the Netherlands, -22.6C

It was bitterly cold , i hadn't slept all night because my sleeping bag got wet, after a whole day of wandering around in the wood's we finaly located the "mountain" which is not easy in a wooded area and reached the summit of the Tower Mountain after a spicey walk up hill (summit shot's coming up)